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LM5100

National Semiconductor
Part Number LM5100
Manufacturer National Semiconductor
Description High Voltage High Side and Low Side Gate Driver
Published Mar 22, 2005
Detailed Description LM5100/LM5101 High Voltage High Side and Low Side Gate Driver January 2004 LM5100/LM5101 High Voltage High Side and Lo...
Datasheet PDF File LM5100 PDF File

LM5100
LM5100

Overview
LM5100/LM5101 High Voltage High Side and Low Side Gate Driver January 2004 LM5100/LM5101 High Voltage High Side and Low Side Gate Driver General Description The LM5100/LM5101 High Voltage Gate Drivers are designed to drive both the high side and the low side N-Channel MOSFETs in a synchronous buck or a half bridge configuration.
The floating high-side driver is capable of operating with supply voltages up to 100V.
The outputs are independently controlled with CMOS input thresholds (LM5100) or TTL input thresholds (LM5101).
An integrated high voltage diode is provided to charge the high side gate drive bootstrap capacitor.
A robust level shifter operates at high speed while consuming low power and providing clean level transitions from the control logic to the high side gate driver.
Under-voltage lockout is provided on both the low side and the high side power rails.
This device is available in the standard SOIC-8 pin and the LLP-10 pin packages.
n n n n n n n Bootstrap supply voltage range up to 118V DC Fast propagation times (25 ns typical) Drives 1000 pF load with 15 ns rise and fall times Excellent propagation delay matching (3 ns typical) Supply rail under-voltage lockouts Low power consumption Pin compatible with HIP2100/HIP2101 Typical Applications n n n n n Current Fed push-pull converters Half and Full Bridge power converters Synchronous buck converters Two switch forward power converters Forward with Active Clamp converters Features n Drives both a high side and low side N-Channel MOSFET n Independent high and low driver logic inputs (TTL for LM5101 or CMOS for LM5100) Package n SOIC-8 n LLP-10 (4 mm x 4 mm) Simplified Block Diagram 20088803 FIGURE 1.
© 2004 National Semiconductor Corporation DS200888 www.
national.
com LM5100/LM5101 Connection Diagrams 20088801 20088802 FIGURE 2.
Ordering Information Ordering Number LM5100/01M LM5100/01MX LM5100/01SD LM5100/01SDX Package Type SOIC-8 SOIC-8 LLP-10 LLP-10 NSC Package Drawing M08A M08A SDC10A S...


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